US President Donald Trump and Chinese leader Xi Jinping held talks in South Korea where they discussed the war in Ukraine and agreed to walk back elements of their bruising trade war. Speaking aboard Air Force One following the October 30 sit down, Trump said that he had an "amazing meeting" with Xi and they they agreed on "many important points," including agreements on trade, tariffs, and rare-earth minerals. He told reporters that he will reduce a tariff on China over its role in the fentanyl crisis by 10 percent and that China would resume…